3
1
Boiler technical data
Tab.
№
. 1
Dimensions, service temperatures and electric parameters of the boiler
Number of sections
pc
8
10
12
15
Appliance category
I
2H
Weight
kg
242
339
399
489
Water space volume
l
27,7
34,3
40,9
50,8
Diameter of smoke socket
mm
200
200
225
250
Boiler overall dimensions - depth
mm
995
1155
1315
1555
- width x height
mm
878,5 x 1160
941x1160
Max. water operating overpressure
kPa (bar)
400 (4)
Min. water operating overpressure
kPa (bar)
30 (0,3)
Testing water overpressure
kPa (bar)
800 (8)
Max. heating water operating temperature
°C
85
Min. return water temperature
°C
50
Input gas overpressure
mbar
20
Noise level
dB
Does not exceed the 55 dB (A) level
Chimney draught
mbar
Minimum 0,025
Boiler connections - heating water
Js
6/4"
- return water
Js
6/4"
- gas
Js
1/2"
1“
Connecting voltage
1/N/PE 230 V AC 50 Hz TN-S
Electric input
W
50
Electric protection
IP 40
Tab.
№
. 2
Thermal parameters of boiler
(heating value 33,99 MJ. m
-3
, gas temperature 15°C and bar. air pressure 1013,25 mbar)
Number of sections
pcs
8
10
12
15
Rated thermal output max.
kW
64
80
96
120
Rated thermal output min.
kW
49
56
67
84
Rated thermal output max
kW
71
87
105
127
Rated thermal output min
kW
55
61
73
94
Volume gas flow at the maximum thermal output
m
3
.h
-1
7,16
9,25
11,32
13,61
Volume gas flow at the minimum thermal output
m
3
.h
-1
5,56
6,5
7,85
10,05
Efficiency at the maximum thermal output
%
91
92
Efficiency at the minimum thermal output
%
89
92
Temperature of the combustion gases after the draught diverter at the
maximum thermal output
°C
122
129
114
118
Temperature of the combustion gases after the draught diverter at the
minimum thermal output
°C
98
95
95
88
Volume of dry combustion gases actual at the maximum thermal output
m
3
.m
-3
20,18
15,8
21,6
18,13
Volume of dry combustion gases actual at the minimum thermal output
m
3
.m
-3
23,63
20,1
24,8
23,6
Emission values - CO
mg.m
-3
5
6
8
7
- NO
x
mg./kWh
33
33
27
23
Grade of NO
x
grade V
Nozzle diameter
mm
2,42
Honeywell VR 4601 and VR 4605 valves
Informative gas pressure at the nozzle for the nominative output at the
maximum thermal output
mbar
15
14,8
14,5
14
Informative gas pressure at the nozzle for the nominative output at the
minimum thermal output
mbar
9
7,6
7,5
7,5
Dungs MB – ZRDLE 412 valve
Informative gas pressure at the nozzle for the nominative output at the
maximum thermal output
mbar
-
13,8
Informative gas pressure at the nozzle for the nominative output at the
minimum thermal output
mbar
-
7
